PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-15:27:50
G03     191.4          24.2                9.9 +/-    1.15      19.7 +/-    1.15  0.120 / 0.190
G07     285.6          34.4               10.1 +/-    1.80      16.2 +/-    1.80  0.100 / 0.210
G08     147.3          23.2               11.9 +/-    1.24      24.3 +/-    1.24  0.090 / 0.610
G09     320.7          58.0                9.1 +/-    0.85      10.6 +/-    0.85  0.160 / 0.500
G16     44.0           41.5                9.5 +/-    0.43      13.5 +/-    0.43  0.030 / 0.030
G23     106.3          77.9                9.6 +/-    0.70       9.8 +/-    0.70  0.030 / 0.040
G26     43.0           13.5                7.6 +/-    1.05      19.6 +/-    1.05  0.040 / 0.090
G27     104.3          31.8               12.5 +/-    0.75      21.2 +/-    0.75  0.040 / 0.080
G30     270.7          10.8               -2.1 +/-   33.24      -5.9 +/-   33.24  0.070 / 0.150